Improper Initialization Affecting firefox-esr package, versions <68.1.0esr-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.23% (62nd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOXESR-460726
  • published3 Sept 2019
  • disclosed27 Sept 2019

Introduced: 3 Sep 2019

CVE-2019-11747  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox-esr to version 68.1.0esr-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

The "Forget about this site" feature in the History pane is intended to remove all saved user data that indicates a user has visited a site. This includes removing any HTTP Strict Transport Security (HSTS) settings received from sites that use it. Due to a bug, sites on the pre-load list also have their HSTS setting removed. On the next visit to that site if the user specifies an http: URL rather than secure https: they will not be protected by the pre-loaded HSTS setting. After that visit the site's HSTS setting will be restored. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

CVSS Scores

version 3.1